"Carborundum" is actually the initial trade name that SiC was originally patented (think Kleenex vs tissue). The Carborundum company now resides with Saint Gobain. They still make abrasives but other parts of the company make specialized parts for heat exchangers, furnaces, etc.

So has anyone actaully sharpened with it?

Deckhand

03-28-2012, 12:49 PM

Interesting on the SIC. Never knew that. Makes great fishing rod guides.

chinacats

03-28-2012, 01:27 PM

I believe my father had used a 4 sided 'stone' which looked identical to the one in the original post with the green handle--though his was significantly dished--is that only antique or are they still available today?

I actually have. It's VERY VERY common to find a small combination SiC stone going for about 2-8 SGD in hardware stores in Singapore. It was what I used before switching to japanese waterstones. IMHO, it does not cut as fast and the feedback is not there. Also dishes fairly quickly.

ajhuff

03-29-2012, 08:28 AM

I grew up with one. My Dad would use it every time he'd get the knife out. Looks like that 7" combo one on the red sign.